That may work but remember i have multiple properties. So what i was trying to do was:

Create a class with all properties. Build a Json response Retrieve only properties that have values against them

I can achieve the above if its in a string format, if so all works as expected. The problem with string is the content-type comes back as plain-text when i need it to be Json.

For that reason i had to deserialize the string only because i wanted it to return of type application/json.

I also tried

JObject.Parse(jsonString);

Which results in the same issue (everything comes back in json format but the values are missing).

Im struggling to use JsonConvert.DeserializeAnonymousObject(jsonString) as examples around the web are different against different versions.

So even if the string output could be converted to json content type that would be ok. I will try BadRequest to see if that does anything different.